Christmas tree stand



FIG. 1 is a perspective view of a tree stand showing my new design;

FIG. 2 is a first side view of the tree stand in FIG. 1;

FIG. 3 is a second side view of the tree stand in FIG. 1, which is opposite to the first side view of FIG. 2;

FIG. 4 is a third side view of the tree stand in FIG. 1, which is adjacent to the first side view of FIG. 2.

FIG. 5 is a fourth side view of the tree stand in FIG. 1, which is opposite to the third side view of FIG. 4.

FIG. 6 is a top plan view of the tree stand in FIG. 1; and,

FIG. 7 is a bottom plan view of the tree stand in FIG. 1.

The portions of the drawings shown in broken lines represent environmental structure and form no part of the claimed design. 

The ornamental design for Christmas tree stand, as shown and described. 